Two of them were taken during the course of house robberies while a third was hijacked.

In an incident at 5am on Friday, Colonel Thembeka Mbele, a KwaZulu-Natal police spokesperson said the complainant was asleep at their home in Redberry Park in Phoenix when he heard a noise and went to investigate.

"Upon investigation he was confronted by two armed men who robbed them of cash, jewellery, cellphones and fled with the complainant's vehicle," Mbele said.

A case of robbery was opened at Phoenix police station for investigation.

The Phoenix Crime and Community Assist (PCCA) group said a Mercedes Benz was allegedly taken during a house robbery in Starwood on Thursday morning.

Ethekwini Secure reported that in Marigold Road, Asherville a motorist was allegedly hijacked of his silver Mercedes Benz on Thursday night.

A police source said for now it was mere speculation if someone had placed Mercedes Benz cars on the list to steal.

However if the cases were combined and investigated by a specialised unit there could be a pattern.